John Rocker vs. Juan Then — Career Comparison

On the career pitching numbers, John Rocker posted a stronger line than Juan Then. John Rocker posted stronger numbers in ERA (3.42 vs 4.91) and home runs allowed (0.81 per nine innings vs 2.45). By the career numbers, John Rocker had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.